Create a teleportation spell

Hi,

I'm currently creating a First Person Game and I'm trying to create a teleportation system that looks like this :

.
I don't know how to do it ... I think I've got to set a ray from the player of a definied lenght and get a transform from the end of the ray and apply it to the player when the player press a defined button.The problem is don't really know how to use the rays and I'm not sure of the script I've to make..
Can you help me please ?

I'm sorry if my english isn't perfect ; I'm french.

Thank's in advance !

PS : If anyone knows how I can create the acceleration effect when the player teleports himself I would be glad to know how I can do it too !

 

Hi,

Split the work into two steps:

1. Target a point on the map.

2. Teleport to a target point.

If you split them into separate scripts, each script will be shorter and easier to write. You can also use the targeting script (#1) for other purposes in the future, too.

For #1, create or activate a targeting GameObject. This GameObject could be a particle effect or mesh without a collider. When targeting, run a raycast in Update(). Move the targeting GameObject to the raycast's hit position.

For #2, consider using a coroutine. Temporarily disable the player's control. In the coroutine, increase the field of view angle over, say, 1 second. This will make the view look warped. Also move the player manually toward the target in the coroutine. In the last 1 second of the coroutine, gradually bring the field of view back to its normal setting. At the end of the coroutine, re-enable the player's control.

 

Thanks a lot for your answer ! Can you just explain me how to use the raycast for #1 please? I don't know how it works ...

Thanks in advance

 

This tutorial explains it better than I could: http://unity3d.com/learn/tutorials/modules/beginner/physics/raycasting

 

Thanks you very much !!

 

Salut !
I'm french sorry for my english .

Code (JavaScript):

1.  
2. var hit: RaycastHit;
3. var ray = Camera.main.ScreenPointToRay(Input.mousePosition);
4.  
5.  
6. if (Physics.Raycast(ray, hit)) {
7.  
8. if(Input.GetKeyDown(KeyCode.E)) {
9. transform.position = hit.point
10.  
11. }
12.  
13.  
14. }
15.  
16.  
17.  
18.  

I don't try but maybe can work .

 

Merci à toi !

 

well played Kooth, that was a nice trolling hahahhaha...
@BDamien54 , just follow the link that TonyLi posted

 

Hi,

Thank's you again, with your help, I succeeded to move the targeting GameObject to the raycast's hit position.
I'm currently creating the coroutine but I don't know how to increase
progressively the camera's field of view for a determined time (let's say 1 second). Can you help me please ? The only documentation I found is here : http://docs.unity3d.com/ScriptReference/Camera-fieldOfView.html.

I also searched how to disable the player's control, do you think this code could be effective ?

Code (CSharp):

1. CharacterController cc =GetComponent(typeof(CharacterController))asCharacterController;
2. cc.enabled =false;

Thank's in advance !

Again, sorry if my english isn't perfect ... :/

Have a good day ! ;D

 

Hi,

That's what I did ! Even if he tried to troll me, he actually gave me some documentation which can always help !

 

It was not a troll , just a bug

(Tu as essayé ce le code ? je crois qu'il marche , rajoute peut-être une condition d'appui sur un bouton)

 

This is off the top of my head. I just typed it in here. I'm not near Unity right now, so it's not tested.

Code (csharp):

1. public float totalDuration = 1; // Duration for entire teleport sequence.
2. public float warpFovDuration = 0.25f; // Duration to warp into/out of wide FOV.
3. public float warpFov = 180; // Field of view while teleporting.
4.  
5. IEnumerator Teleport(Vector3 destination) {
6.     // Disable player controls:
7.     // (Specify your player input script here)
8.     var playerControl = GetComponent<FirstPersonController>();
9.     playerControl.enabled = false;
10.  
11.     // Record initial state:
12.     var initialTime = Time.time;
13.     var initialPosition = transform.position;
14.     var initialFov = Camera.main.fieldOfView;
15.  
16.     // Teleport a little bit each frame:
17.     while (Time.time < startTime + duration) {
18.         var elapsed = Time.time - startTime;
19.         transform.position = Vector3.Lerp(initialPosition, destination, elapsed / totalDuration);
20.         if (Time.time < startTime + warpFovDuration) {
21.             // Ease FOV into teleport mode:
22.             Camera.main.fieldOfView = Mathf.Lerp(initialFov, warpFov, elapsed / warpFovDuration);
23.        else if (Time.time > startTime + duration - warpFovDuration) {
24.             // Ease FOV out of teleport mode:
25.             var easeOutElapsed = elapsed - (duration - warpFovDuration);
26.             Camera.main.fieldOfView = Mathf.Lerp(warpFov, initialFov, easeOutElapsed / warpFovDuration);
27.         }
28.         yield return null;
29.     }
30.  
31.     // Enable player controls:
32.     playerControl.enabled = true;
33. }

 

Ah d'accord ! Je vais regarder ça, merci de ton aide en tout cas !

 

Thank's you, I will try this !
It gives me a good idea of what I've to do !
Thank's you again !!

 

Happy to help!